Quantum number projection at finite temperature via thermofield dynamics

K. Tanabe and H. Nakada

Phys. Rev. C 71, 024314 – Published 28 February 2005

Abstract

Applying thermofield dynamics, we reformulate the exact quantum number projection in the finite-temperature Hartree-Fock-Bogoliubov theory. Explicit formulas are derived for the simultaneous projection of particle number and angular momentum, in parallel to the zero-temperature case. We also propose a practical method for the variation-after-projection calculation, by approximating entropy consistently with the Peierls inequality. Using quantum number projection in finite-temperature mean-field theory will be useful for studying the effects of quantum fluctuations associated with the conservation laws on thermal properties of nuclei.

Received 13 October 2004

DOI:https://doi.org/10.1103/PhysRevC.71.024314

Authors & Affiliations

K. Tanabe^*

Department of Physics, Faculty of Science, Saitama University, Sakura, Saitama 338-8570, Japan

H. Nakada^†

Department of Physics, Faculty of Science, Chiba University, Inage, Chiba 263-8522, Japan

^*Electronic address: tanabe@phy.saitama-u.ac.jp.
^†Electronic address: nakada@faculty.chiba-u.jp.

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand

Issue

Vol. 71, Iss. 2 — February 2005

Reuse & Permissions

Access Options

Author publication services for translation and copyediting assistance advertisement

Physical Review C

covering nuclear physics